这已经是一个世纪的梦了。人们永远不会忘记的是本世纪初的1901年,在地球东方的小岛上,有一个养蚕的人,他的蚕不幸死了,当他再用同样的饲料喂活着的蚕,活着的蚕又死掉了,他开始研究他的饲料,研究中发现,饲料是无毒的,无毒的饲料不知何时却发了酵,发酵后的饲料里有了一种微生物叫苏云金杆菌。发酵的饲料又对昆虫生命产生制约,这个地面上带着许多疑问的理论,象暗夜的星光一样,隐隐约约地闪遍了全球的每一个角 This is a dream of a century. People will never forget that in 1901 at the beginning of this century, on the small island of the eastern part of the earth, there was a sericulture man whose silkworm died. When he feeds the living silkworm again with the same feed, he lives. The silkworm died again. He began to study his feed. During the research, he found that the feed was non-toxic, and the non-toxic feed was not known when it was fermented. There was a microorganism called Bacillus thuringiensis in the feed after fermentation. Fermented feeds also impose restrictions on the life of insects. This theory on the ground is full of doubts. Like the starlight of the night, it faintly shines around every corner of the globe.